Krótko o ostrzeniu piłu - po co i dlaczego :)

Linki:
==> https://amzn.to/2pVqkSR - 7 nawyków
==> https://amzn.to/2X1b5UD - Drive
==> https://www.inc.com/jessica-stillman/these-successful-entrepreneurs-all-swear-by-a-think-week-should-you-take-one-too.html
==> https://blog.gutek.pl/2016/10/28/ale-sie-wkurzylem/
==> https://blog.gutek.pl/2017/06/23/wszystko-jest-w-twojej-glowie/


Social
==> https://twitter.com/gutek
==> https://www.facebook.com/GutkowskiJakub/
==> https://linkedin.co